[QHC-713] Implement ExperimentExecutor

[fedonman]

• Introduced the ExperimentExecutor class to manage and execute quantum experiments within the Qililab framework. This class provides a streamlined way to handle the setup, execution, and results retrieval of experiments.

  Temporary Constraints:

  • The experiment must contain only one QProgram.
  • The QProgram must contain a single measure operation.
  • Parallel loops are not supported.

• Introduced the platform.execute_experiment() method for executing experiments. This method simplifies the interaction with the ExperimentExecutor by allowing users to run experiments with a single call.

• Variables in QProgram and Experiment now require a label.

  qp = QProgram()
  gain = qp.variable(label="gain", domain=Domain.Voltage)

[linear[bot]]

QHC-713 Implement the execution of Experiment

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 96.98795% with 5 lines in your changes missing coverage. Please review.

Project coverage is 95.87%. Comparing base (d0763c7) to head (8629878). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/qililab/qprogram/experiment_executor.py	96.87%	4 Missing :warning:
...rc/qililab/qprogram/operations/execute_qprogram.py	80.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #790 +/- ## ========================================== + Coverage 95.86% 95.87% +0.01% ========================================== Files 271 272 +1 Lines 8827 8973 +146 ========================================== + Hits 8462 8603 +141 - Misses 365 370 +5 ``` | [Flag](https://app.codecov.io/gh/qilimanjaro-tech/qililab/pull/790/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qilimanjaro-tech) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/qilimanjaro-tech/qililab/pull/790/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qilimanjaro-tech) | `95.87% <96.98%> (+0.01%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qilimanjaro-tech#carryforward-flags-in-the-pull-request-comment) to find out more.

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